Wenger We work on our defence every day

I think not scoring from corner kicks is a fault of the attack rather than the defence.

This criticism has gone rather over the top. It is surely impossible for Arsenal *not* to be working on their defence. If they are practising attack the whole time how can they do that without having a defence to spar with? They presumably aren't hiring in a defence from Tottenham whilst their defence sits down with a tray of pork pies.